Spectravideo SV-328A slightly modified SV-318.
A full stroke keyboard, and a numeric keypad, replacing the joystick.
64k RAM insted of 16k.
Launched in june 1983, during Summer CES in Chicago.

NAME

SV-328

MANUFACTURER

Spectravideo

TYPE

Home Computer

ORIGIN

U.S.A.

YEAR

1983 June

BUILT IN LANGUAGE

Microsoft Extended
BASIC

KEYBOARD

Full stroke
keyboard with numeric keypad

CPU

Zilog Z80 A

SPEED

3.6 MHz

RAM

64 kB (up to 256
kB)

VRAM

16 kB

ROM

32 kB

GRAPHICS

TMS9918A
SCREEN 0: Text mode 40x24 characters, two
colors (background+foregrund).
Fonts are formed using a 6x8 pixel matrix. Sprites are not available in this mode.
SCREEN 1: High resolution graphics mode: 256x192, 16 colors.
Sprites are available.
Colour resolution is
8x1 pixels: that is, for every group of 8x1 pixels, only one
foreground/background color pair may be displayed.
This is a
standard TMS-9918A limitation.
Text is also supported in SCREEN1, allowing up to 43x24
characters (with two pixels chopped off the 43rd character).
SCREEN 2: Low resolution graphics mode: 64x48, 16 colors.
Sprites are available.
The screen is addressed and formed using full 256x192
resolution, with 4x4 block graphics (each 8x8 pixel matrix holds
four low resolution pixels). Sprites are displayed at high
resolution (256x192).
Text is also supported in SCREEN2, allowing up to 11x6
characters (with two pixels chopped off the 11th character)